TC

Tat Fung Chu

OE Otis Elevator: 1 patents #64 of 199Top 35%
Overall (2024): #252,098 of 561,600Top 45%
1
Patents 2024

Issued Patents 2024

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11887454 System and method for monitoring elevator operating environment Kin Chun Chan, Siu Pang Ng 2024-01-30